US6620053B2 - Golf club - Google Patents

Golf club Download PDF

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Publication number
US6620053B2
US6620053B2 US10/037,230 US3723002A US6620053B2 US 6620053 B2 US6620053 B2 US 6620053B2 US 3723002 A US3723002 A US 3723002A US 6620053 B2 US6620053 B2 US 6620053B2
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United States
Prior art keywords
shaft
golf club
weight
head
insert
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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US10/037,230
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US20020151375A1 (en
Inventor
Wen-Cheng Tseng
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/02—Joint structures between the head and the shaft
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/10—Non-metallic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/12—Metallic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like

Definitions

  • the present invention relates to a golf club and, more particularly, to a golf club with high accuracy in driving a golf ball.
  • a golf club consists of a shaft ( 80 ) with a grip ( 81 ) at one end and an offset head ( 82 ) at the other. It is at the grip ( 81 ) that a golfer holds the club, swinging it in the air until hitting a ball at a striking face ( 84 ) on the head ( 82 ). The ball is driven in a direction depending on how the face ( 84 ) is orientated when it hits the ball. In general, a correct orientation of the face ( 84 ) is always important to the accuracy of the final driving during the full period when the club is swung in the air.
  • the head ( 82 ) has a certain heaviness, such as 200 grams, which brings about an inertial force as the club is being swung more and more quickly in the air.
  • the inertial force resulted from the offset head ( 82 ) becomes an inertial moment about the shaft ( 10 ), resulting in a tendency to swivel the club on the axle of the shaft ( 80 ) and hence to vary the orientation of the striking face ( 84 ) of the head ( 82 ).
  • the object of the present invention is to provide a golf club with high accuracy in driving a golf ball.
  • FIG. 1 is a fragmentary exploded perspective view of a preferred embodiment of a golf club in accordance with the present invention
  • FIG. 2 is a fragmentary cross-sectional view of parts of the golf club shown in FIG. 1;
  • FIG. 3 is a fragmentary cross-sectional view of the golf club shown in FIG. 1;
  • FIG. 4 is a schematic view of a golf club.
  • a golf club in accordance with the present invention includes a tapered hollow shaft ( 10 ) having a thin end ( 13 ) and a thick end (not shown), with a flange ( 12 ) formed around the shaft ( 10 ) near the thin end ( 13 ).
  • a head ( 50 ) which has a striking face ( 52 ), is configured to be attached to the thin end ( 13 ) of the shaft ( 10 ).
  • the shaft ( 10 ) is provided with a hosel ( 30 ) at its thin end ( 13 ).
  • the hosel ( 30 ) has a threaded outer section ( 32 ), a threaded intermediate section ( 33 ) and an annular stop ( 31 ) formed between the threaded sections ( 32 , 33 ).
  • the hosel ( 30 ) has a helical slot ( 34 ) defined therearound and a boss ( 35 ) formed at an end thereof opposed to the threaded outer section ( 32 ).
  • the hollow shaft ( 10 ) has a tapered inner channel (not numbered) for receiving a bar-like weight ( 20 ).
  • the weight ( 20 ) shaped to mate with the inner channel, preferably has two opposed recesses ( 21 , 22 ) defined in ends thereof, as best shown in FIG. 1 .
  • the hollow shaft ( 10 ) further has a threaded inner periphery ( 15 ) defined at its thin end ( 13 ), and the threaded intermediate section ( 33 ) of the hosel ( 30 ) is engaged with the threaded inner periphery ( 15 ) in such a way that its annular stop ( 31 ) abuts the thin end ( 13 ) of the shaft ( 10 ) and its boss ( 35 ) fits in the recess ( 21 ) of the weight ( 20 ). As a result, the hosel ( 30 ) is connected to the shaft ( 10 ).
  • a secondary weight ( 60 ) may be additionally received in the channel of the hollow shaft ( 10 ), if necessary.
  • the secondary weight ( 60 ) is located adjacent to an end of the weight ( 20 ) opposed to the hosel ( 30 ), and has a boss ( 61 ) configured to fit in the recess ( 22 ) of the weight ( 20 ).
  • the secondary weight ( 60 ) may further have a recess ( 62 ) for a third weight.
  • the hosel ( 30 ) and the weight ( 20 ) or weights ( 20 , 60 ) are preferably joined to the shaft ( 10 ) by gel ( 70 ), which may also be applied to the recesses ( 21 , 22 ) and the bosses ( 35 , 61 ).
  • the hollow shaft ( 10 ) has a vent ( 14 ) defined therein, in order to let air into the hollow shaft ( 10 ) to help consolidation of the gel ( 70 ), as well as to lead surplus gel ( 70 ) out of the hollow shaft ( 10 ).
  • the head ( 50 ) has a neck ( 51 ) formed with a stepped hole ( 511 ) for receiving both the thin end ( 13 ) of the shaft ( 10 ) and the threaded sections ( 32 , 33 ) of the hosel ( 30 ).
  • an inner collar ( 53 ) Formed in the stepped hole ( 511 ) is an inner collar ( 53 ) that defines a through-hole ( 54 ).
  • the threaded outer section ( 32 ) of the hosel ( 30 ) extends through the through-hole ( 54 ) of the inner collar ( 53 ), and is threaded engaged with a nut ( 40 ) in such a manner that either the flange ( 12 ) of the shaft ( 10 ) abuts the rim of the neck ( 51 ) or the annular stop ( 31 ) of the hosel ( 32 ) abuts the inner collar ( 53 ), thus attaching the head ( 50 ) to the shaft ( 10 ).
  • the head ( 50 ) is made less heavy than a related standard by an amount equivalent to the weight ( 20 ) in the hollow shaft ( 10 ), or alternatively, to the weights ( 20 , 60 ) if the secondary one ( 60 ) is provided.
  • the golf club has been rearranged in its mass distribution by removing a certain amount of its total mass from the head ( 50 ) into the shaft ( 10 ), and so this golf club has the same gross weight as a normal one.
  • the invention has an advantage of high accuracy in driving a golf ball, due to the fact that the less heavy head ( 50 ) brings about a reduced inertial moment about the shaft ( 10 ) while the club is being swung towards a golf ball. Furthermore, the unchanged gross weight may give any user an usual feeling whenever he/she is swinging the golf club.

Abstract

A golf club with high accuracy in driving a golf ball is disclosed. The golf club includes a tapered hollow shaft having a thin end and a thick end, with a weight received in the hollow shaft. A head is formed with a neck that defines a stepped hole for fixedly receiving the thin end of the shaft. Importantly, the head is made less heavy than a related standard by an amount equivalent to the weight in the hollow shaft, and so the golf club has the same gross weight as a normal club.

Description

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a golf club and, more particularly, to a golf club with high accuracy in driving a golf ball.
2. Description of Related Art
As illustrated in FIG. 4, a golf club consists of a shaft (80) with a grip (81) at one end and an offset head (82) at the other. It is at the grip (81) that a golfer holds the club, swinging it in the air until hitting a ball at a striking face (84) on the head (82). The ball is driven in a direction depending on how the face (84) is orientated when it hits the ball. In general, a correct orientation of the face (84) is always important to the accuracy of the final driving during the full period when the club is swung in the air.
On the other hand, the head (82) has a certain heaviness, such as 200 grams, which brings about an inertial force as the club is being swung more and more quickly in the air. The inertial force resulted from the offset head (82) becomes an inertial moment about the shaft (10), resulting in a tendency to swivel the club on the axle of the shaft (80) and hence to vary the orientation of the striking face (84) of the head (82).
Therefore, it is an objective of the invention to provide agolf club to mitigate and/or obviate the aforementioned problem.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a golf club with high accuracy in driving a golf ball.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a fragmentary exploded perspective view of a preferred embodiment of a golf club in accordance with the present invention;
FIG. 2 is a fragmentary cross-sectional view of parts of the golf club shown in FIG. 1;
FIG. 3 is a fragmentary cross-sectional view of the golf club shown in FIG. 1; and
FIG. 4 is a schematic view of a golf club.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1, a golf club in accordance with the present invention includes a tapered hollow shaft (10) having a thin end (13) and a thick end (not shown), with a flange (12) formed around the shaft (10) near the thin end (13). A head (50), which has a striking face (52), is configured to be attached to the thin end (13) of the shaft (10).
The shaft (10) is provided with a hosel (30) at its thin end (13). The hosel (30) has a threaded outer section (32), a threaded intermediate section (33) and an annular stop (31) formed between the threaded sections (32, 33). In the illustrated embodiment, the hosel (30) has a helical slot (34) defined therearound and a boss (35) formed at an end thereof opposed to the threaded outer section (32).
Referring to FIG. 2, the hollow shaft (10) has a tapered inner channel (not numbered) for receiving a bar-like weight (20). The weight (20), shaped to mate with the inner channel, preferably has two opposed recesses (21, 22) defined in ends thereof, as best shown in FIG. 1.
The hollow shaft (10) further has a threaded inner periphery (15) defined at its thin end (13), and the threaded intermediate section (33) of the hosel (30) is engaged with the threaded inner periphery (15) in such a way that its annular stop (31) abuts the thin end (13) of the shaft (10) and its boss (35) fits in the recess (21) of the weight (20). As a result, the hosel (30) is connected to the shaft (10).
A secondary weight (60) may be additionally received in the channel of the hollow shaft (10), if necessary. The secondary weight (60) is located adjacent to an end of the weight (20) opposed to the hosel (30), and has a boss (61) configured to fit in the recess (22) of the weight (20). The secondary weight (60) may further have a recess (62) for a third weight.
The hosel (30) and the weight (20) or weights (20, 60) are preferably joined to the shaft (10) by gel (70), which may also be applied to the recesses (21, 22) and the bosses (35, 61). In this case, the hollow shaft (10) has a vent (14) defined therein, in order to let air into the hollow shaft (10) to help consolidation of the gel (70), as well as to lead surplus gel (70) out of the hollow shaft (10).
Referring to FIG. 3, the head (50) has a neck (51) formed with a stepped hole (511) for receiving both the thin end (13) of the shaft (10) and the threaded sections (32, 33) of the hosel (30).
Formed in the stepped hole (511) is an inner collar (53) that defines a through-hole (54). The threaded outer section (32) of the hosel (30) extends through the through-hole (54) of the inner collar (53), and is threaded engaged with a nut (40) in such a manner that either the flange (12) of the shaft (10) abuts the rim of the neck (51) or the annular stop (31) of the hosel (32) abuts the inner collar (53), thus attaching the head (50) to the shaft (10).
In the inventive golf club, it is important that the head (50) is made less heavy than a related standard by an amount equivalent to the weight (20) in the hollow shaft (10), or alternatively, to the weights (20, 60) if the secondary one (60) is provided.
In other words, the golf club has been rearranged in its mass distribution by removing a certain amount of its total mass from the head (50) into the shaft (10), and so this golf club has the same gross weight as a normal one.
From the above description, it can be appreciated that the invention has an advantage of high accuracy in driving a golf ball, due to the fact that the less heavy head (50) brings about a reduced inertial moment about the shaft (10) while the club is being swung towards a golf ball. Furthermore, the unchanged gross weight may give any user an usual feeling whenever he/she is swinging the golf club.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (4)

What is claimed is:
1. A golf club with high accuracy in driving a golf ball, comprising:
a tapered hollow shaft (10) having a thin end (13) and a thick end, said hollow shaft (10) being formed with an insert (30) at said thin end of said shaft (10), a primary weight (20) received in said hollow shaft (10), said primary weight (20) having two oppose recesses (21, 22) defined in ends thereof, and a secondary weight (60) received therein in a location adjacent to a end of said primary weight (20) opposed to said insert (30), said insert (30) and said secondary weight (60) each having a boss (35, 62) configured to fit in corresponding one of said recesses of said primary weight (20);
a head (50) having a neck (51) formed thereon, said neck (51) defining a stepped hole (511) for fixedly receiving said thin end (13) of said shaft (10).
2. The golf club as claimed in claim 1, wherein said shaft (10) has a threaded inner periphery (15) defined at said thin end (13) thereof, and wherein said insert (30) has a threaded outer section (32), a threaded intermediate section (33) and an annular stop (31) formed between said threaded sections (32, 33), with said threaded intermediate section (33) adapted to be threadedly engaged with said inner periphery (15) of said shaft (10) and with said annular stop (31) adapted to abut said thin end (13) of said shaft (10).
3. The golf club as claimed in claim 2, wherein an inner collar (53) is formed in said stepped hole (511) of said head (50), and wherein said threaded outer section (32) of said insert (30) extends through said inner collar (53) and is threadedly engaged with a nut (40), thereby attaching said head (50) to said shaft (10).
4. The golf club as claimed in claim 3, wherein said primary weight (20) and said insert (30) are joined to said shaft (10) by gel (70).
US10/037,230 2001-04-12 2002-01-02 Golf club Expired - Fee Related US6620053B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TW90205700U 2001-04-12
TW090205700U TW563576U (en) 2001-04-12 2001-04-12 Golf club with weight built in the club
TW090205700 2001-04-12

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US20020151375A1 US20020151375A1 (en) 2002-10-17
US6620053B2 true US6620053B2 (en) 2003-09-16

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Cited By (45)

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US20050101405A1 (en) * 2003-11-12 2005-05-12 Callaway Golf Company Golf club
US20060105855A1 (en) * 2004-11-17 2006-05-18 Callaway Golf Golf club with interchangeable head-shaft connections
US7267619B1 (en) 2006-06-21 2007-09-11 Pettis William J Golf club balancing apparatus
US20080051211A1 (en) * 2004-11-17 2008-02-28 Callaway Golf Company Interchangeable shaft for a golf club
US20080058114A1 (en) * 2004-11-17 2008-03-06 Callaway Golf Company Interchangeable shaft for a golf club
US20080070717A1 (en) * 2004-11-17 2008-03-20 Callaway Golf Company Interchangeable shaft for a golf club
US20080076590A1 (en) * 2006-09-22 2008-03-27 Hsu Hsin I Golf club with tilt adjustable mechanism
US20080119301A1 (en) * 2004-11-17 2008-05-22 Denver Holt Iron-type Golf Club with Interchangeable Head-Shaft Connection
US20090019975A1 (en) * 2007-05-03 2009-01-22 Callaway Golf Company Torque wrench for use with golf club
US20090221380A1 (en) * 2006-11-27 2009-09-03 Breier Joshua G Golf club having removable sole weight using custom and interchangeable panels
US20090264214A1 (en) * 2008-01-31 2009-10-22 Noah De La Cruz Interchangeable shaft system
US7621820B2 (en) 2006-11-27 2009-11-24 Acushnet Company Quick release connection system for golf clubs
US7713143B2 (en) 2007-11-09 2010-05-11 Callaway Golf Company Golf club head with adjustable weighting, customizable face-angle, and variable bulge and roll face
US20110009206A1 (en) * 2008-01-31 2011-01-13 Soracco Peter L Interchangeable shaft system
US20110021282A1 (en) * 2009-07-24 2011-01-27 Nike, Inc. Side Locking Adjustable Shaft Connection Systems for Removably Connecting a Golf Club Head and Shaft
US7887431B2 (en) 2008-05-16 2011-02-15 Taylor Made Golf Company, Inc. Golf club
US20110039637A1 (en) * 2009-01-27 2011-02-17 Callaway Golf Company Golf club with stable face angle
US7934999B2 (en) 2009-05-18 2011-05-03 Callaway Golf Company Wood-type golf club head with adjustable sole contour
US20110118048A1 (en) * 2008-01-31 2011-05-19 Soracco Peter L Interchangeable shaft system
US20110118046A1 (en) * 2007-04-13 2011-05-19 Thomas Orrin Bennett Interchangeable shaft and club head connection system
US20110143854A1 (en) * 2007-12-18 2011-06-16 Acushnet Company Interchangeable shaft system
US8096895B2 (en) 2004-11-17 2012-01-17 Callaway Golf Company Interchangeable shaft for a golf club
US20120077611A1 (en) * 2010-09-27 2012-03-29 David Lorince Weighted Golf Club Training Device
US8147350B2 (en) 2008-05-16 2012-04-03 Taylor Made Golf Company, Inc. Golf club
US8177661B2 (en) 2008-05-16 2012-05-15 Taylor Made Golf Company, Inc. Golf club
US20120231896A1 (en) * 2011-03-10 2012-09-13 Callaway Golf Company Adjustable golf club shaft and hosel assembly
US8337319B2 (en) 2009-12-23 2012-12-25 Taylor Made Golf Company, Inc. Golf club
US8360897B2 (en) 2008-01-31 2013-01-29 Acushnet Company Interchangeable shaft system
US8523701B2 (en) 2007-12-18 2013-09-03 Acushnet Company Interchangeable shaft system
US8535172B2 (en) 2011-07-28 2013-09-17 Cobra Golf Incorporated Golf club with universal hosel and/or spacer
US8550934B2 (en) 2007-11-09 2013-10-08 Callaway Golf Company Golf club head with adjustable weighting, customizable face-angle, and variable bulge and roll face
US20140004971A1 (en) * 2009-03-13 2014-01-02 EHT Golf Design, LLC Club Head with External Hosel
USD697155S1 (en) 2012-11-15 2014-01-07 Taylor Made Golf Company, Inc. Golf club head
US8727905B2 (en) 2007-12-18 2014-05-20 Acushnet Company Interchangeable shaft system
US8747248B2 (en) 2007-12-18 2014-06-10 Acushnet Company Interchangeable shaft system
US8758153B2 (en) 2009-12-23 2014-06-24 Taylor Made Golf Company, Inc. Golf club head
US8961330B2 (en) 2007-12-18 2015-02-24 Acushnet Company Interchangeable shaft system
US9033821B2 (en) 2008-05-16 2015-05-19 Taylor Made Golf Company, Inc. Golf clubs
US9216331B2 (en) 2013-03-14 2015-12-22 Taylor Made Golf Company, Inc. Golf club head with adjustable sole
US9403067B2 (en) 2007-12-18 2016-08-02 Acushnet Company Interchangeable shaft system
US9468816B2 (en) 2014-12-31 2016-10-18 Taylor Made Golf Company, Inc. Non-metallic connection assembly for a golf club
US9757627B2 (en) 2007-12-18 2017-09-12 Acushnet Company Interchangeable shaft system
US9861864B2 (en) 2013-11-27 2018-01-09 Taylor Made Golf Company, Inc. Golf club
US10596421B1 (en) * 2019-07-17 2020-03-24 Callaway Golf Company Golf club head with adjustable hosel
US11090530B1 (en) * 2020-10-10 2021-08-17 Anthony Aguilar Interchangeable shafts for golf putter

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JP2015154813A (en) * 2014-02-20 2015-08-27 株式会社さくらゴルフ Golf club balance adjustment method and balance adjusted golf club
KR102070521B1 (en) * 2018-11-13 2020-01-28 채병곤 Golf Clubs for Education
TWI742971B (en) * 2020-12-23 2021-10-11 金頌企業股份有限公司 Manufacturing method of carbon fiber cue with weight section

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Cited By (114)

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US20050101405A1 (en) * 2003-11-12 2005-05-12 Callaway Golf Company Golf club
US6966847B2 (en) * 2003-11-12 2005-11-22 Callaway Golf Company Golf club
US7611422B2 (en) 2004-11-17 2009-11-03 Callaway Golf Company Interchangeable shaft for a golf club
US20080051211A1 (en) * 2004-11-17 2008-02-28 Callaway Golf Company Interchangeable shaft for a golf club
US8235840B2 (en) 2004-11-17 2012-08-07 Callaway Golf Company Interchangeable shaft for a golf club
US20060105855A1 (en) * 2004-11-17 2006-05-18 Callaway Golf Golf club with interchangeable head-shaft connections
US20080058114A1 (en) * 2004-11-17 2008-03-06 Callaway Golf Company Interchangeable shaft for a golf club
US20080070717A1 (en) * 2004-11-17 2008-03-20 Callaway Golf Company Interchangeable shaft for a golf club
CN101060891B (en) * 2004-11-17 2010-05-05 卡拉韦高尔夫公司 Golf club with interchangeable head-shaft connection
US20080119301A1 (en) * 2004-11-17 2008-05-22 Denver Holt Iron-type Golf Club with Interchangeable Head-Shaft Connection
US20090124407A1 (en) * 2004-11-17 2009-05-14 Callaway Golf Company Interchangeable shaft for a golf club
US20080280695A1 (en) * 2004-11-17 2008-11-13 Callaway Golf Company Interchangeable shaft for a golf club
US7465239B2 (en) 2004-11-17 2008-12-16 Callaway Golf Company Interchangeable shaft for a golf club
US7476160B2 (en) 2004-11-17 2009-01-13 Callaway Golf Company Interchangeable shaft for a golf club
US7083529B2 (en) * 2004-11-17 2006-08-01 Callaway Golf Company Golf club with interchangeable head-shaft connections
US20090098946A1 (en) * 2004-11-17 2009-04-16 Callaway Golf Company Interchangeable shaft for a golf club
US7530900B2 (en) 2004-11-17 2009-05-12 Callaway Golf Company Iron-type golf club with interchangeable head-shaft connection
US20100016094A1 (en) * 2004-11-17 2010-01-21 Callaway Golf Company Interchangeable shaft for a golf club
US7578749B2 (en) 2004-11-17 2009-08-25 Callaway Golf Company Interchangeable shaft for a golf club
US8096895B2 (en) 2004-11-17 2012-01-17 Callaway Golf Company Interchangeable shaft for a golf club
US7267619B1 (en) 2006-06-21 2007-09-11 Pettis William J Golf club balancing apparatus
US7438645B2 (en) * 2006-09-22 2008-10-21 Hsin I Hsu Golf club with tilt adjustable mechanism
US20080076590A1 (en) * 2006-09-22 2008-03-27 Hsu Hsin I Golf club with tilt adjustable mechanism
US8715108B2 (en) 2006-11-27 2014-05-06 Cobra Golf Incorporated Quick release connection system for golf clubs
US7621820B2 (en) 2006-11-27 2009-11-24 Acushnet Company Quick release connection system for golf clubs
US20100069171A1 (en) * 2006-11-27 2010-03-18 Clausen Karl A Quick release connection system for golf clubs
US8403772B2 (en) 2006-11-27 2013-03-26 Cobra Golf Incorporated Quick release connection system for golf clubs
US8092316B2 (en) 2006-11-27 2012-01-10 Acushnet Company Golf club having removable sole weight using custom and interchangeable panels
US8177657B2 (en) 2006-11-27 2012-05-15 Cobra Golf Incorporated Quick release connection system for golf clubs
US7878924B2 (en) 2006-11-27 2011-02-01 Cobra Golf Inc. Quick release connection system for golf clubs
US7871336B2 (en) 2006-11-27 2011-01-18 Acushnet Company Golf club having removable sole weight using custom and interchangeable panels
US8105175B2 (en) 2006-11-27 2012-01-31 Acushnet Company Golf club having removable sole weight using custom and interchangeable panels
US20090221381A1 (en) * 2006-11-27 2009-09-03 Breier Joshua G Golf club having removable sole weight using custom and interchangeable panels
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